We have the duty to object to things that people say. If you report something that I take to be false, unwarranted, or harmful, I may be required to say as much. In this paper, I explore how to best understand the distinctively epistemic dimension of this duty. I begin by highlighting two central features of this duty that distinguish it from others, such as believing in accordance with the evidence or promise‐keeping. In particular, I argue that whether we are (...) obligated to object is directly influenced not only by what other relevant members of the conversational context or community do, but also by the social status of the agent in question. I then show that these features are shared by the duty to be charitable, and the similarities between these two duties point to a potentially deeper explanation: while promise‐keeping is regarded as a classic perfect duty, charity is an imperfect one. I then argue that the duty to object can be modeled on a particular conception of imperfect duties, one that takes the duty to belong to communities and other collectives, rather than to individuals. I conclude by showing that this framework provides us with reason for accepting that there are imperfect epistemic duties in general. (shrink)

There are many cases in which people collectively cause some morally significant outcome (such as a harmful or beneficial outcome) but no individual act seems to make a difference. The problem in such cases is that it seems each person can argue, ‘it makes no difference whether or not I do X, so I have no reason to do it.’ The challenge is to say where this argument goes wrong. My approach begins from the observation that underlying the problem and (...) motivating the typical responses to it is a standard, intuitive assumption. The assumption is that if an act will not make a difference with respect to an outcome, then it cannot play a sig- nificant, non-superfluous role in bringing that outcome about. In other words, helping to bring about an outcome requires making a difference. I argue that the key to solving the problem is to reject this assumption. I develop an account of what it is to help to bring about an outcome, where this does not require making a difference, and I use this explain our reasons for action in the problem cases. This account also yields an error theory that explains why the standard assumption is so tempting, even though it is mistaken. (shrink)

People feel they understand complex phenomena with far greater precision, coherence, and depth than they really do; they are subject to an illusion—an illusion of explanatory depth. The illusion is far stronger for explanatory knowledge than many other kinds of knowledge, such as that for facts, procedures or narratives. The illusion for explanatory knowledge is most robust where the environment supports real‐time explanations with visible mechanisms. We demonstrate the illusion of depth with explanatory knowledge in Studies 1–6. Then we show (...) differences in overconfidence about knowledge across different knowledge domains in Studies 7–10. Finally, we explore the mechanisms behind the initial confidence and behind overconfidence in Studies 11 and 12, and discuss the implications of our findings for the roles of intuitive theories in concepts and cognition. (shrink)

Every day, thousands of polls, surveys, and rating scales are employed to elicit the attitudes of humankind. Given the ubiquitous use of these instruments, it seems we ought to have firm answers to what is measured by them, but unfortunately we do not. To help remedy this situation, we present a novel approach to investigate the nature of attitudes. We created a self-transforming paper survey of moral opinions, covering both foundational principles, and current dilemmas hotly debated in the media. This (...) survey used a magic trick to expose participants to a reversal of their previously stated attitudes, allowing us to record whether they were prepared to endorse and argue for the opposite view of what they had stated only moments ago. The result showed that the majority of the reversals remained undetected, and a full 69% of the participants failed to detect at least one of two changes. In addition, participants often constructed coherent and unequivocal arguments supporting the opposite of their original position. These results suggest a dramatic potential for flexibility in our moral attitudes, and indicates a clear role for self-attribution and post-hoc rationalization in attitude formation and change. (shrink)

At the end of a thoughtful article on the future of nuclear war, Wiesner and York concluded that: "Both sides in the arms race are... confronted by the dilemma of steadily increasing military power and steadily decreasing national security. It is our considered professional judgment that this dilemma has no technical solution. If the great powers continue to look for solutions in the area of science and technology only, the result will be to worsen the situation.".

In this classic text, Kant sets out to articulate and defend the Categorical Imperative - the fundamental principle that underlies moral reasoning - and to lay the foundation for a comprehensive account of justice and human virtues. This new edition and translation of Kant's work is designed especially for students. An extensive and comprehensive introduction explains the central concepts of Groundwork and looks at Kant's main lines of argument. Detailed notes aim to clarify Kant's thoughts and to correct some common (...) misunderstandings of his doctrines. (shrink)

This essay explains for a general philosophical audience the central issues and strategies in the contemporary moral realism debate. It critically surveys the contribution of some recent scholarship, representing expressivist and pragmatist nondescriptivism, subjectivist and nonsubjectivist naturalism, nonnaturalism and error theory. Four different faces of ‘ moral realism ’ are distinguished: semantic, ontological, metaphysical, and normative. The debate is presented as taking shape under dialectical pressure from the demands of capturing the moral appearances and reconciling morality with our understanding of (...) the mind and world. (shrink)

We propose a model of motivated skepticism that helps explain when and why citizens are biased information processors. Two experimental studies explore how citizens evaluate arguments about affirmative action and gun control, finding strong evidence of a prior attitude effect such that attitudinally congruent arguments are evaluated as stronger than attitudinally incongruent arguments. When reading pro and con arguments, participants (Ps) counterargue the contrary arguments and uncritically accept supporting arguments, evidence of a disconfirmation bias. We also find a confirmation bias—the (...) seeking out of confirmatory evidence—when Ps are free to self-select the source of the arguments they read. Both the confirmation and disconfirmation biases lead to attitude polarization—the strengthening of t2 over t1 attitudes—especially among those with the strongest priors and highest levels of political sophistication. We conclude with a discussion of the normative implications of these findings for rational behavior in a democracy. (shrink)

Nietzsche never presented a worked-out normative ethical theory and appeared to regard any attempt to do so as woefully misguided. He poured scorn on the main contenders for such a theory in his day, and in ours – Kantian ethics and utilitarianism. Moreover, he repeatedly referred to himself as an 'immoralist' and gave one of his books the title Beyond Good and Evil, thus seeming only to confirm the impression that he was more interested in demolishing, and even abolishing morality (...) altogether than in making any constructive contribution to the subject. While the topic of morality appears as a central and almost obsessive interest in his works – especially in the sequence of books from Daybreak: Thoughts on the Prejudices of Morality (1881) to On the Genealogy of Morality (1887) – it generally does so as the target of relentless criticism. Many have concluded, not surprisingly, that Nietzsche, rather than being interested in replacing an existing conception of morality with a better one of his own, was in the business of advising us to abandon morality altogether – to live, in some sense, without morality. (shrink)